roundworld.dll

Round World

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module roundworld.dll by Round World has been detected as adware by 17 anti-malware scanners. This file is typically installed with the program Round World by Yontoo Technology, Inc. which is a potentially unwanted software program. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. The file has been seen being downloaded from install-cdn.myroundworld.com and multiple other hosts.
Publisher:
Round World  (signed and verified)

Product:
Round World

Version:
1.0.0.7

MD5:
f58d5afb0352e0256d0f2d6cd5cf39a4

SHA-1:
bb4c01d0906d85a6c96c3931c37d93f8ba5ee2d4

SHA-256:
cd1441a2a7d673005b51063fa84aee1154ad1ec2116ab665144a47a8cb5bc93d

Scanner detections:
17 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
12/28/2024 6:33:17 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.212.102

AVG
Generic
2016.0.3188

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15225

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1016
9.0.1.056

ESET NOD32
Win32/BrowseFox.AE potentially unwanted (variant)
9.11229

Fortinet FortiGate
Riskware/BrowseFox
2/25/2015

F-Prot
W32/S-f64f6ec1
v6.4.7.1.166

IKARUS anti.virus
AdWare.BrowseFox
t3scan.1.8.6.0

K7 AntiVirus
Unwanted-Program
13.198.15071

Malwarebytes
PUP.Optional.RoundWorld.A
v2015.02.25.08

McAfee
Artemis!F58D5AFB0352
5600.6844

NANO AntiVirus
Trojan.Win32.Yontoo.dnkubo
0.30.0.296

Qihoo 360 Security
HEUR/QVM30.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Yontoo
15.3.1.12

Trend Micro House Call
Suspicious_GEN.F47V0223
7.2.56

Vba32 AntiVirus
AdWare.MSIL.Agent
3.12.26.3

File size:
262.7 KB (269,040 bytes)

Product version:
1.0.0.7

Copyright:
(c) Round World. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/11/2015 12:00:00 AM

Valid to:
1/11/2016 11:59:59 PM

Subject:
CN=Round World, O=Round World, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
1E6F69E3F386155D988683D665483D02

File PE Metadata
Compilation timestamp:
2/23/2015 9:38:03 AM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:Oyq7vzkKELk3SVaUs0FHxB+V9l63gY+GzGcEG+ZKTtRKaHdXgcEhUb:Oyq7v44SVcYHBth+ZepfwUb

Entry address:
0xF515

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, EA, 7E, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, C8, 21, 03, 10, E8, 4C, 02, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 4C, 77, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, C4, 93, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.0730

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

The file roundworld.dll has been discovered within the following program.

Round World  by Yontoo Technology, Inc.
Round World is an adware program that installs as a web browser plugin to inject and display advertisements.
myroundworld.com/support
81% remove it
 
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The file roundworld.dll has been seen being distributed by the following 2 URLs.

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